API 5L Grb LSAW Line Pipe
LSAW submerged-arc longitudinal welded pipe (DSAW | Double Submerged arc welded):Tubular product having one or two longitudinal seams produced by submerged-arc welding.
Specification Acc to API5L /ISO 3183
Quality Level: PSL1 and PSL2
Grade: Gr.B/BR/BN/BQ/BM
Outer Diameter: 219mm-1820mm
Wall Thickness: 5.0mm-50mm
Length: 6mtr-18mtr
End:square ends (straight cut, saw cut, and torch cut).or beveled for welding
API 5L PSL1 Grade B Steel Pipes
Chemical Composition for PSL1
L245/Grb:
| C | Mn | P | S |
| 0.28 max | 1.2 max | 0.030 max | 0.030 max |
Chemical Composition for PSL2
L245R/GrBR/L245N/GrBN:
| C | Si | Mn | P | S | CEhw | CEpcm |
| 0.24 max | 0.40 max | 1.2 max | 0.025 max | 0.025 max | 0.43 max | 0.25 max |
L245Q/GrBQ:
| C | Si | Mn | P | S | V | Nb | Ti | CEhw | CEpcm |
| 0.18 max | 0.45 max | 1.4 max | 0.025 max | 0.015 max | 0.05 max | 0.05 max | 0.04 max | 0.43 max | 0.25 max |
L245M/GrBM:
| C | Si | Mn | P | S | V | Nb | Ti | CEhw | CEpcm |
| 0.22 max | 0.45 max | 1.2 max | 0.025 max | 0.015 max | 0.05 max | 0.05 max | 0.04 max | 0.43 max | 0.25 max |
Mechnical Propertise/Tensile Test for PSL1:
Gr.B:
Yield Strength:245 Mpa(35500psi) min,
Yield Strength: 415Mpa(60200psi)min
Mechnical Propertise/Tensile Test for PSL2:
Gr.BR /BN/BQ/BM:
Yield Strength:245 Mpa(35500psi) -450Mpa(65300),
Yield Strength: 415Mpa(60200psi)-760Mpa(110200psi)
Testing required: Acc.to API5L Tesile test, Flattening test,Bending test,Charpy test,Welding test,NDT,Ultrasonic Test,Hydrostatic test
Condition of delivery :
API 5L Grb PSL1
As-rolled, normalizing rolled, thermomechanical rolled, thermomechanical formed, normalizing formed, normalized, normalized and tempered; or, if agreed, quenched and tempered for SMLS pipe only
API 5L Grb PSL2
BR :as Rolled , BN :Normalizing rolled, normalizing formed, normalized or normalized and tempered,BQ :Quenched and tempered, BM:Thermomechanical rolled or thermomechanical formed.
Surface treatment:
Blasting SA 2.5 beofre black painted or anti-rust oil painted
For more information,please contact me: sales@haihaogroup.com